
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class TxtHelper {
    public final static String QUOTE_MARK = "\"";
    public static String quoteMarked(String content) {
            return QUOTE_MARK + content + QUOTE_MARK;
        }
        public static StringBuilder truncEnding(StringBuilder sb, int number) {
        return sb.delete(sb.length() - number, sb.length());
    }
    public static String truncEnding(String sb, int number) {
        return TxtHelper.truncEnding(new StringBuilder(sb), number).toString();
    }
    public static String readTxt(String filename) throws IOException {
        BufferedReader bf = new BufferedReader(new FileReader(filename));
        String line = bf.readLine();
        StringBuilder sb = new StringBuilder();
        while (line != null) {
            sb.append(line);
            line = bf.readLine();
        }
        bf.close();
        return sb.toString();
    }
}
